30974173830 has 48 divisors (see below), whose sum is σ = 84034285920. Its totient is φ = 7900658304.

The previous prime is 30974173781. The next prime is 30974173847. The reversal of 30974173830 is 3837147903.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7479615 + ... + 7483754.

It is an arithmetic number, because the mean of its divisors is an integer number (1750714290).

Almost surely, 2^30974173830 is an apocalyptic number.

30974173830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30974173830 is an abundant number, since it is smaller than the sum of its proper divisors (53060112090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30974173830 is a wasteful number, since it uses less digits than its factorization.

30974173830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14963405 (or 14963402 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 30974173830 in words is "thirty billion, nine hundred seventy-four million, one hundred seventy-three thousand, eight hundred thirty".